时下对钙的宣传铺天盖地。那么,钙真是那么重要吗?是不是一定要服用补钙制剂?据调查资料,日本冲绳岛上的居民,长寿者很多,古稀不稀,度百岁乃去者亦不乏其人。究其原因,衣食起居与别人也无不同,但是那里的饮水中含有大量的钙,其钙平均含量比日本其他 Nowadays the spread of calcium overwhelming. So, calcium is so important? Is not it necessary to take calcium preparations? According to the survey data, residents of Okinawa, Japan, many longevity, the old age is not dilute, the degree of hundred who are also no shortage of people. The reason, living daily necessities and others are no different, but where the drinking water contains a lot of calcium, the average content of calcium than other Japanese